List 4 things all circuits must contain.
- Voltage source
- Electrical load(s)
- Switch(es)
- Circuit protection
Which circuit component is made of a curved alloy piece inside a plastic insulator?
Fuse.
What is the purpose of a fuse?
To monitor current and save other circuit components from damage due to excessive current.
Would a fuse be located on the hot or ground side of a circuit?
Hot side.
What is another term for a fuse box?
Power distribution block.
What is a commonly used alternative to ground wires?
Chassis ground path.
What does NO and NC mean in regards to switches?
NO - Normally open
NC - Normally closed
Describe the function of a relay.
Using a low current path to control a high current path.
How does a relay switch work?
By using an electromagnetic coil to create electromagnetic field to connect the load path.
Describe the relationship of resistance and current in a relay control path.
High resistance, low current.
Describe the relationship of resistance and current in a relay load path.
Low resistance, high current.
